Warning: Unbrewed header files were found in /usr/local/include.If you didn't put them there on purpose they could cause problems whenbuilding Homebrew formulae, and may need to be deleted.

Warning: You have unlinked kegs in your CellarLeaving kegs unlinked can lead to build-trouble and cause brews that depend onthose kegs to fail to run properly once built. Run `brew link` on these: iojs

Warning: Your Xcode (7.3.1) is outdated.Please update to Xcode 8.2 (or delete it).Xcode can be updated from the App Store.